# Trimble R12i / R10

The Trimble R12i, R10, and R750 are professional survey-grade GNSS receivers delivering centimeter-level accuracy for land surveying, construction, and geospatial applications. The R12i features Trimble ProPoint GNSS engine and tilt compensation for measurements without leveling the pole. These receivers are configured through **Trimble Access** software running on a TSC5, TSC7, or T7 controller connected via Bluetooth or Wi-Fi.

## Requirements

* **Trimble R12i, R10, or R750** powered on with clear sky visibility
* **Trimble Access** software on a TSC5, TSC7, or T7 controller
* **Internet connection** on the controller (cellular modem, phone hotspot via Bluetooth, or Wi-Fi)
* **RTKdata.com account** with active RTK credentials (username starting with `rtk` and password from your RTK dashboard)
* **Survey pole** with Trimble quick-release adapter

{% hint style="info" %}
Don't have an RTKdata.com account yet? [Start 30-day Free Trial](https://rtkdata.com/try-rtk-corrections-free-for-30-days/) or [View Pricing](https://rtkdata.com/pricing/)
{% endhint %}

## Step-by-step setup

{% hint style="danger" %}
RTKdata delivers **single-baseline RTCM corrections**, not VRS. You must create a **Single Base / RTCM** survey style. Do NOT select "Network RTK," "VRS," "iMAX," or "CMRx." Using the wrong style will cause the survey to hang at 90% during startup.
{% endhint %}

{% stepper %}
{% step %}

#### Create a new survey style

1. In Trimble Access, tap **Settings** (gear icon) → **Survey Styles**.
2. Tap **New** to create a fresh style.
3. Name it **RTKdata Single Base**.
4. Under **Positioning type**, select **RTK**.
   {% endstep %}

{% step %}

#### Configure rover correction source

1. Inside the new style, tap **Rover options**.
2. Set **Correction source** to **Internet connection**.
3. Set **Correction type** to **RTCM v3**.

{% hint style="warning" %}
Do NOT select VRS, iMAX, or CMRx as the correction type. RTKdata uses standard RTCM 3.x single-baseline corrections.
{% endhint %}
{% endstep %}

{% step %}

#### Enter RTKdata.com NTRIP settings

Tap **NTRIP settings** and fill in the fields. Select the tab for your region:

{% tabs %}
{% tab title="North America" %}

* **Host (domain):** `rtk.rtkdata.com`
* **Host (IP fallback):** `13.56.117.10`
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the internal dashboard (not website login)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}

{% tab title="Europe" %}

* **Host (domain):** `eu.rtkdata.com`
* **Host (IP fallback):** `3.73.41.96`
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the internal dashboard (not website login)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}

{% tab title="Australia" %}

* **Host (domain):** `aus.rtkdata.com`
* **Host (IP fallback):** `54.206.56.130`
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the internal dashboard (not website login)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}
  {% endtabs %}

Type the mountpoint manually — do not browse the source table.
{% endstep %}

{% step %}

#### Start the survey

1. Return to the main screen and tap **Survey** → **Start survey**.
2. Select the **RTKdata Single Base** style you just created.
3. Trimble Access will connect to the internet, then to RTKdata's NTRIP caster.
4. Wait for the solution to progress: **Autonomous** → **Float** → **Fix**.
5. Once at Fix, the controller displays accuracy estimates and you can begin collecting points.
   {% endstep %}
   {% endstepper %}

## R12i tilt compensation

The R12i includes Trimble's ProPoint engine with IMU-based tilt compensation. Once connected to RTKdata with a Fix solution, tilt compensation initializes automatically. You do not need to level the pole — simply hold it near-vertical and the receiver compensates for up to 30 degrees of tilt. A tilt icon appears on the controller when tilt compensation is active.

## Trimble Catalyst DA2

The Trimble Catalyst DA2 antenna also works with RTKdata. It requires a **Catalyst Basic** subscription license (not the Free tier) to accept external NTRIP corrections. Configure it in the Trimble Catalyst app using the same NTRIP settings above.

## Vertical reference (heights)

{% hint style="info" %}
Heights from RTKdata.com are **ellipsoidal**, not orthometric (mean sea level). Apply a geoid model in Trimble Access (Settings → Coordinate system → Vertical adjustment) if your project requires MSL heights.
{% endhint %}

## Troubleshooting

| Problem                           | Cause                               | Fix                                                                                                                      |
| --------------------------------- | ----------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| "Starting survey" stuck at 90%    | VRS or Network RTK style selected   | Delete the style and create a new one using **RTCM v3** correction type, not VRS/iMAX.                                   |
| "Mount point not found"           | Wrong capitalization or typo        | Type `AUTO` in ALL CAPS. Do not browse the mountpoint list.                                                              |
| No internet connection            | Controller not connected to network | Pair your phone via Bluetooth for internet sharing, or use the controller's built-in cellular modem.                     |
| Float only, never reaches Fix     | Obstructed sky or large baseline    | Move to open sky. Check that RTKdata has base station coverage in your area via the [coverage map](https://rtkdata.com). |
| Corrections disconnect mid-survey | Unstable cellular connection        | Check signal strength. The receiver will auto-reconnect when the connection stabilizes.                                  |

## Tips and tricks

* **Always use RTCM v3** — this is the only correction type compatible with RTKdata's single-baseline architecture.
* **Save the survey style** so your crew can reuse it across projects without reconfiguring each time.
* **Check correction age** on the controller status bar. If it exceeds 5 seconds, your internet connection may be dropping.
* **For the R750 machine receiver**, configure the same NTRIP settings through Trimble SitePulse or Trimble WorksOS instead of Trimble Access.
* **Firmware updates** improve RTK performance. Keep your receiver and Trimble Access up to date via Trimble Installation Manager.